Sen. Bernie SandersBernie SandersBloomberg campaign: Primary is two-way race with Sanders Warren: Bloomberg making debate will show how other candidates handle 'an egomaniac billionaire' HuffPost reporter: Sanders could win plurality of delegates but lose nomination MORE (I-Vt.) couldn’t finish watching Wednesday night’s GOP debate because he said it was too hard to watch.

“It was really painful,” he said in a Thursday interview with CNN “New Day” hosts Alisyn Camerota and Chris Cuomo.

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“I couldn’t go on for the whole three hours,” Sanders said of the contest. “I gave up after two-and-a-half.”

“It is really remarkable how they avoided the major issues facing the American people,” the 2016 Democratic presidential candidate added. “It is amazing how they think all the problems facing humanity are attributable to [President] Barack Obama.”

Sanders argued on Thursday that the GOP’s 2016 presidential field ignored many of the issues most gravely concerning Americans during Wednesday night’s broadcast from Simi Valley, Calif.

“If you listened to the debate, you would not know that most of the people in our country believe we need comprehensive immigration reform and a path towards citizenship,” he said.

“Income and wealth inequality were not discussed at all,” Sanders said. “Nor did I hear a word about racial injustice in this country.

“In terms of climate change, I did not hear anyone say this is a planetary crisis,” the Vermont lawmaker added. “If we don’t act now, a bad situation will be worse in later years.”

Sanders also rebuked Louisiana Gov. Bobby Jindal for trying to discredit his socialism during Wednesday’s undercard GOP debate on CNN.

“It is easy to try to frighten people,” he said of Jindal. “Socialism, oh my word, we should be shaking in our boots.”

“Why are we the only major nation on Earth that doesn’t guarantee universal healthcare?” Sanders asked. “Forget Scandinavia, I live across the border from Canada.”

Sanders remarks come as he races to catch up with former secretary of State Hillary ClintonHillary Diane Rodham ClintonOmar endorses progressive Georgia Democrat running for House seat Bernie Sanders's Super Tuesday problem Democrats worried about Trump's growing strength MORE in the race for next year’s Democratic presidential coronation.

Clinton currently ranks first with 44.7 percent to Sanders’s 23.3 percent, according to the latest RealClearPolitics average of national polls.